Slicing machine



Feb. 20, 1934.

W. J. CAMPBELL SLICING MACHINE Filed Marchy 7. 1932 2 Sheets-Sheet 1 Feb. 20, 1934 w. J. CAMPBELL SLICING MACHINE 2 Sheets-Sheet 2 Filed March '7, 1932 Patented Feb. 20, 1934 UNITED STATES SLICIWNG.V MACHINE William J.'Campbell', Indianapolis, Ind., assigner to American Slicing Machine Company, Chicago, Ill., a corporation of New York y AApplication March 7, 1932. Serial No. 597,167

7 Claims.

My invention relates to an improvement in slicing machines and has for one object the provision, in a slicing machine having a knife and a work supporting carriage, of means for receiving grease or drippings from the knife, in connection with means for preventing the access of grease and `drippings to concealed portions of the knife and knife driving mechanism. One object is the provision of an improvement in refuse receiving containers. Another Objectis the provision of improved means for directing scrapings from the knife into such a container. Other objects `will appear from time to time inthe course of the specification and claims.

This application is a continuation in part of my co-pending application, Ser. No. 487,665, filed October 10, 1930, said application having matured into Patent No. 1,865,411 on June 28, 1932.

, I illustrate my invention more or less diagrammatically in the accompanying drawings, where- Figure 1 is a front view;

Figure 2 is a horizontal section; Y,

Figure 3 is a section on the line 3-3 of Figure 1;

Figure 4 is a detail of the refuse receiving vessel;

Figure 5 is a section on the line 5-5 of Figure 2; and

Figure 6 is a section on the line 6-6 of Figure 1.

, Like parts are indicated by like symbols throughout the specification and drawings.

Referring to the drawings, A generally indicates any suitable base structure being mounted for example on rubber pads or equivalent members A2. Mounted in any suitable fashion on the base is a motor B having a motor shaft Bl carrying a pulley B2.

I C indicates a rotary knife mounted on a knife vshaft C1 positioned within roller or ball bearings .C2 in the sleeve C3 which is mounted in any suitable fashion on the base A. C4 indicates a pulley held against rotation in relation to the knife. C5 is a drive belt extending about the pulleys B2 and C4, whereby the knife C is rotated in response to rotation of the motor shaft B1. i

D indicates a guard plate mounted in any suitable fashion on the base A, the details of such 'mounting forming no part of the present inven- .tion. It will be noted that it is provided withY an arcuate edge D1 penetrating the interior of a forward cavity C10 of the knife C. As will be clear from Figure 2, the axis of the knife is somewhat 5 tilted in order to permit the arcuate edge D1 of 'the guard plate D to penetrate such cavity. Only the cutting edge and a short arc of the lknife ad- `vjacent thereto areexposed, the rest ofthe area (Cl. 14S-102) of the knife being covered by the guard plate D. D2 indicates a scraper which in the illustrated form of the device is mounted directly upon the base A opposite a recess or cut away portion D3, of the guard plate D. The portion of the guard e0 plate along the upper edge of the recess D3 may Vscraper D2. As will be seen in Figure 1 the scraper is opposed to the forward face of the knife and is positioned adjacent the lowest portion of the 05 knife, vertically beneath the axis of rotation of the knife.

E indicates any suitable gauge plate the details of which form no part of the present invention but which may be moved toward and away from 10 the cutting Vplanel of the knife as by rotationof the manual knob E1 with its shaft E2, and Worm E3. In the form illustrated herein the worm E3 is in mesh with a -gear E4 associated with an arm Y or arms E5. E6 is Va spring tending to takeup any 15 slack between'the Worm and gear.

G is a circular supporting track mounted on any suitable supports G1. Associated with it is a guide track G2. Slidable along the track G is a carriage structure generally indicated as G3 with an arm so G4 downwardly extending for cooperative relation with the track G2. G5 is any suitable work supporting member or trough. G6 is a guide and Gla pusher plate sleeve slidable on said guide, whereby a pusher plate G8 is mounted for move- 85 ment along the trough G5. It will be understood that work may be positioned upon 'the trough G5 and may be pushed either by the hand or by the pusher plate toward the cutting plane and against the gauge plate E. The gauge or thickness of the slice is set by positioning the knob E1. The

carriage is thrust manually across the face of the knife and past its cutting edge, slices being severed by the Vcutting edge of the knife.

I provide a receiving plate H, positioned to the rear of the cutting plane, upon which the severed slices y may fall. The member H includes an upward flange adjacent the cutting plane, herein indicated as H1. The flange may include an arcuate portion H2 conforming generally to the arc of 100 the knife and closely approaching it. H3 is a downwardly and outwardly extending projection from the forward face of the flange or wall H1.

It is herein shown as scalloped or provided with a plurality of depending points or other equivalent H4. Note that the arcuate surface H2 is eccentric in relation to the axis of the knife. As will be seen from Figure 1, the space separating Y the member H2 from the cutting edge of the knifeincreases in the direction of movement of the knife, such direction being shown by an arrow in Figure l. This prevents wedging of the material, as the rotation of the knife tends to move the particles from the narrower to wider portion of the separating space. Therefore, it is freed and may drop into the refuse trough below described.

Positioned on the base A and herein shown as adjacent or between the tracks G, G2, is a removable refuse trough J. It includes a bottom J1, walls J2, and endwise projections at opposite ends, J3, the projections being herein shown as in the general plane of the bottom J1. These projections are provided with slots J4 having bevelled enlargements J5 on the upper faces of the members J3. As shown in Figure 5 the bottom of the member J1 and of the members J 3 is shown as continuous and lying in the same plane. This is convenient but not vitally necessary. Mounted upon the base A are posts J6 headed as at J7. Slidable on said posts are securing buttons J 8 having bevelled faces J9 conforming to the bevels J5, provided with interior springs J1u compressed between the members J7 and the lower portions of the buttons J8, whereby the buttons are normally thrust downwardly along the pins J6, the springs J10 being positioned in a cylindrical space within each button J8, of greater diameter than the exterior diameter of the pin J6. Note that when the container J is in refuse receiving position, as shown in Figure 6, the inner of the walls J2 is beneath and overlapped by the forward projection H3 of the wall H1 of the slice receiving member H.

It will be realized that in a slicing machine of this kind it is exceedingly important that a minimum of grease, scrapings and the like be permitted to penetrate tol the rear of the guard plate D. This is important not only for sanitary reasons but to prevent access of grease to the driving mechanism. Hence I provide the scraper D2 which scrapes or cleans the forward face and cutting edge of the knife. Assume that a fatty substance, such as ham or bacon, or fat beef, is being cut, the frictional contact of the knife will generate sufcient heat to cause a discharge from the work of a certain amount of grease. Also, small scraps and the like will tend to adhere to the forward face of the knife. The scraper is designed to separate or scrape off whatever grease, fragments and particles may adhere to the 'face of the knife. This material drops into the container J. In order to direct it into the container and to prevent it from flowing down across the face of the wall H1 I provide the outward projection H3. As grease and juices may be deposited when in a freely flowing or fairly freely flowing condition, I provide the depending projections H4 to serve as dripping points, to increase the rapidity of discharge of the material from the member H3. It may frequently become necessary to clean the container J or to free it from its accumulation of grease and fragments. I therefore make it readily and forwardly removable from the machine. The spring pressed members J8 prevent its normal displacement but are insufficient to prevent a desired removal by the hand of the operator.

It will be realized that whereas I have described and shown a practical and operative device, nevertheless many changes might be made in the size, shape, number and disposition of parts without departing from the spirit of my invention. I therefore wish my description and drawings to be taken as in a broad sense illustrative and diagrammatic rather than as limiting me to my specific showing.

I claim:

1. In a slicing machine having a knife and means for actuating it, and a carriage and means for guiding it across the face and past the cutting edge of the knife, a slice receiving member positioned to the rear of the cutting plane, a scraper opposed to the forward face of the knife and a refuse receiving member positioned adjacent the cutting plane of the knife and in the line of discharge of said scraper, said refuse receiving member being independently removable from the slicing machine, the slice receiving member including an end wall adjacent a wall of the refuse receiving member, said wall being provided with a portion adapted to overhang the side wall of the receiving member when the receiving member is in operative position, said overhanging portion being downwardly and outwardly inclined and being provided with a plurality of drop forming depending projections.

2. In a slicing machine having a rotary knife and means for rotating it, and a carriage and means for guiding it across the face and past the cutting edge of the knife, a slice receiving member positioned to the rear of the cutting plane, said slice receiving member including a forward wall adjacent the cutting plane, said wall including a portion having an arcuate edge adjacent the cutting edge of the knife, said arcuately formed edge of the slice receiving member being described about a center eccentric from the center of the knife, the space between the arcuate edge of said wall and the knife increasing in the direction of rotation of the knife.

3. In a slicing machine having a rotary knife and means for rotating it, and a carriage and means for guiding it across the face and past the cutting edge of the knife, a slice receiving member positioned to the rear of the cutting plane, said slice receiving member including a forward wall adjacent the cutting plane, said wall including a portion having an arcuate edge adjacent the cutting edge of the knife, said arcuately formed edge of the slice receiving member being described about a center eccentric from the center of the knife, the space between the arcuate edge of said wall and the knife increasing in the direction of rotation of the knife, and a refuse receiving member positioned adjacent the cutting plane of the knife and underlying the portion of the cutting edge of the knife opposed to the arcuate edge of said wall.

4. In a slicing machine having a rotary knife and means for rotating it and a carriage and means for guiding it across the face of the knife, a slice receiving member positioned to the rear of the cutting plane, a separate refuse receiving member positioned forwardly of the cutting plane, said member havingY a wall extending generally along the cutting plane, the slice receiving member having a forward wall adjacent the cutting plane, said wall including a portion overhanging the adjacent wall of the separate receiving member, said overhanging portion being inclined downwardly and outwardly from the cutting plane, the separate receiving member being at all times freely and independently removable from the slicing machine.

5. In a slicing machine having a rotary knife and means for rotating it and a carriage and means for guiding it across the face of the knife, a slice receiving member positioned to the rear Aof the cutting plane, a separate refuse receiving member positioned forwardly of the cutting plane, said member having a wall extending generally along the cutting plane, the slice receiving member having a forward wall adjacent the cutting plane, said wall including a portion overhanging the adjacent wall of the separate receiving member, said overhanging portion being inclined downwardly and outwardly from the cutting plane, the separate receiving member being at all times freely and independently forwardly removable from the slicing machine.

6. For use with a slicing machine, a refuse pan positioned adjacent the cutting plane of said machine and yielding means for holding said refuse pan normally in xed refuse receiving position, said means including lugs on said refuse pan, posts on said slicing machine, securing members vertically movable on said posts, and yielding means tending normally to thrust them downwardly along said posts, said lugs being provided with apertures adapted' partially to surround said posts, said lugs and securing members having opposed bevelled surfaces, said apertures opening toward the back of the tray. 7. In combination with a slicing machine, a refuse tray positioned adjacent the cutting plane of the machine, and yielding means for holding said refuse tray normally in receiving position, while permitting ready removal thereof, including posts on the slicing machine, securing members vertically movable on said posts, and yielding means tending normally to thrust them downwardly along said posts, said tray being provided with a plurality of slots extending inwardly from the edge of the tray, said slots being adapted by their position on the tray to permit the tray to be engaged with or disengaged from said posts by movement in a generally horizonal plane. t

WILLIAM J. CAMPBELL.

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